Andrew Ooi

Transport of particles in a turbulent rough-wall pipe flow

L Chan, T Zahtila, A Ooi, J Philip

Journal article  |  2021  |  Journal of Fluid Mechanics

Dense, small particles suspended in turbulent smooth-wall flow are known to migrate towards the wall. It is, however, not clear if..

Some new characteristics of the confined flow over circular cylinders at low reynolds numbers

A Ooi, L Chan, D Aljubaili, C Mamon, JS Leontini, A Skvortsov, P Mathupriya, H Hasini

Journal article  |  2020  |  International Journal of Heat and Fluid Flow

This study summarises some new characteristics of the fluid flow over a confined circular cylinder at low Reynolds numbers. Result..

Application of a POD-Galerkin based method to time resolved and time unresolved data for the determination of the Convective Velocity of Large-Scale Coherent Structures in High Speed Flows

T Sikroria, J Soria, R Sandberg, A Ooi

Journal article  |  2020  |  International Journal of Heat and Fluid Flow

Motivated by the aero-acoustic feedback loop phenomenon in high speed free jets and impinging jets, a thorough examination of a PO..

Sensitivity analysis of FDA's benchmark nozzle regarding in vitro imperfections-Do we need asymmetric CFD benchmarks?

M Stiehm, C Brandt-Wunderlich, S Siewert, KP Schmitz, N Grabow, L Goubergrits, T Kühne, EKW Poon, A Ooi, P Barlis

Journal article  |  2020  |  Current Directions in Biomedical Engineering

AbstractModern technologies and methods such as computer simulation, so-called in silico methods, foster the development of medica..

High Spatial Endothelial Shear Stress Gradient Independently Predicts Site of Acute Coronary Plaque Rupture and Erosion.

Vikas Thondapu, Chris Mamon, Eric KW Poon, Osamu Kurihara, Hyung Oh Kim, Michele Russo, Makoto Araki, Hiroki Shinohara, Erika Yamamoto, Jouke Dijkstra, Mark Tacey, Hang Lee, Andrew Ooi, Peter Barlis, Ik-Kyung Jang, undefined MGH OCT Registry Investigators

Journal article  |  2020  |  Cardiovascular Research

AIMS: To investigate local haemodynamics in the setting of acute coronary plaque rupture and erosion. METHODS AND RESULTS: Intraco..

A direct comparison of pulsatile and non-pulsatile rough-wall turbulent pipe flow

TO Jelly, RC Chin, SJ Illingworth, JP Monty, I Marusic, A Ooi

Journal article  |  2020  |  Journal of Fluid Mechanics

Pulsatile rough-wall turbulent pipe flow is compared against its non-pulsatile counterpart using data obtained from direct numeric..

Prediction of gas holdup in partially aerated bubble columns using an EE-LES coupled model

SJ Zhu, A Ooi, R Manasseh, A Skvortsov

Journal article  |  2020  |  Chemical Engineering Science

Transient gas-liquid flow dynamics in partially aerated square cross-sectioned bubble columns were studied using an Eulerian–Euler..

Receptivity analysis in under-expanded supersonic impinging jets

S Karami, P Stegeman, A Ooi, V Theofilis, J Soria

Conference Proceedings  |  2020  |  Journal of Fluid Mechanics

This paper presents the receptivity process at the nozzle-lip to an external forcing in the configuration of under-expanded supers..

Forcing frequency effects on turbulence dynamics in pulsatile pipe flow

Z Cheng, TO Jelly, SJ Illingworth, I Marusic, ASH Ooi

Journal article  |  2020  |  International Journal of Heat and Fluid Flow

The turbulence dynamics of pulsatile pipe flow are investigated using direct numerical simulation (DNS) at a mean friction Reynold..

On the comparison of the dynamics of particles within homogeneous isotropic turbulence and the Reynolds and favre filtered flow velocities

P Stegeman, J Soria, A Ooi

Conference Proceedings  |  2020  |  ETC 2013 - 14th European Turbulence Conference